public DanhSachAnPham HienThiAPTuaDeMax(DanhSachAnPham a)
{
DanhSachAnPham kq = new DanhSachAnPham();
int max = TimAPTuaDeMax(a);
foreach (var item in a.dsap)
{
if (item is Sach)
{
Sach s = (Sach)item;
if (s.TuaDe.Length == max)
{
kq.Them(item);
}
}
if (item is TapChi)
{
TapChi tc = (TapChi)item;
if (tc.TuaDe.Length == max)
{
kq.Them(item);
}
}
}
return(kq);
}
private int TimAPTuaDeMax(DanhSachAnPham a)
{
int max = int.MinValue;
foreach (var item in a.dsap)
{
if (item is Sach)
{
Sach s = (Sach)item;
if (s.TuaDe.Length > max)
{
max = s.TuaDe.Length;
}
}
if (item is TapChi)
{
TapChi tc = (TapChi)item;
if (tc.TuaDe.Length > max)
{
max = tc.TuaDe.Length;
}
}
}
return(max);
}
public DanhSachAnPham APTrangMax(DanhSachAnPham a)
{
DanhSachAnPham kq = new DanhSachAnPham();
int max = a.dsap.Max(x => x.SoTrang);
kq.dsap = a.dsap.Where(x => x.SoTrang == max).ToList();
return(kq);
}
private List <string> LayDSNXB(DanhSachAnPham a)
{
foreach (var item in a.dsap)
{
if (!DSNXB.Contains(item.NXB))
{
DSNXB.Add(item.NXB);
}
}
return(DSNXB);
}
private DanhSachAnPham DSTC(DanhSachAnPham a)
{
DanhSachAnPham kq = new DanhSachAnPham();
foreach (var item in a.dsap)
{
if (item is TapChi)
{
kq.Them(item);
}
}
return(kq);
}
public void HienThiDSNXB(DanhSachAnPham a)
{
DSNXB = LayDSNXB(a);
foreach (var item in DSNXB)
{
Console.WriteLine("NXB" + item);
Console.WriteLine("=============");
foreach (var i in a.dsap)
{
if (item.CompareTo(i.NXB) == 0)
{
Console.WriteLine(i);
}
}
}
}
static void Main(string[] args)
{
DanhSachAnPham DSAP = new DanhSachAnPham();
QuanLyAnPham ql = new QuanLyAnPham();
DSAP.NhapTuFile();
DSAP.Xuat();
//Console.WriteLine("An pham co tua de dai nhat la: "+"\n");
//Console.WriteLine(ql.HienThiAPTuaDeMax(DSAP));
//Console.WriteLine("An pham co so trang dai nhat la: " + "\n");
//Console.WriteLine(ql.APTrangMax(DSAP));
//Console.WriteLine("Hien thi an pham theo chieu tang cua so trang:" + "\n");
//Console.WriteLine(ql.TangGiamTrang(DSAP));
//Console.WriteLine("Tim tap chi co so bai viet nhieu nhat" + "\n");
//Console.WriteLine(ql.TCSLBVMax(DSAP));
//ql.HienThiDSNXB(DSAP);
Console.ReadLine();
}
public DanhSachAnPham TCSLBVMax(DanhSachAnPham a)
{
DanhSachAnPham ds = new DanhSachAnPham();
ds = DSTC(a);
int max = ds.TimSLBVMax();
DanhSachAnPham kq = new DanhSachAnPham();
foreach (var item in ds.dsap)
{
if (item is TapChi)
{
TapChi tc = (TapChi)item;
if (tc.SoBaiViet == max)
{
kq.Them(item);
}
}
}
return(kq);
}
public DanhSachAnPham TangGiamTrang(DanhSachAnPham a)
{
a.dsap.Sort((x, y) => x.SoTrang.CompareTo(y.SoTrang));
return(a);
}
